The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 03, 2023

Filed:

Jul. 12, 2019
Applicant:

Valeo Siemens Eautomotive France Sas, Cergy, FR;

Inventors:

Gang Yang, Courbevoie, FR;

Huan Zhou, Houilles, FR;

Sébastien Lecointre, Levallois-Perret, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/38 (2007.01); H02M 1/00 (2006.01); H02M 3/00 (2006.01); H02M 7/48 (2007.01);
U.S. Cl.
CPC ...
H02M 1/38 (2013.01); H02M 1/0058 (2021.05); H02M 3/01 (2021.05); H02M 3/33571 (2021.05); H02M 3/33573 (2021.05); H02M 7/4815 (2021.05);
Abstract

A method for controlling switching of an electrical system comprising having at least one frequency-controlled switch arm, includes the following steps: closing a first top or bottom switch, implementing a predetermined downtime and opening a second switch, for a period corresponding to the control frequency, and then: opening the first switch, comparing the voltage measured at the midpoint with a voltage threshold, determining a second instant tat which the voltage measured at the midpoint crosses the voltage threshold, closing the second switch at the second instant t, calculating a downtime DT adjusted according to a formula which is a function of the control frequency Fsw, a first instant tand a second instant t, the adjusted downtime being implemented as of the subsequent switching.


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